A technical quibble...
"burned media" is indeed harder to read than pressed media, bit it is not the "hardest to read"
RW media takes that honor...
that being said all things die.
As I just commented in another post, even the continents
have been recycled
presuming it's not a correctable/temporary issue...
Like for instance is this recently purchased media that you haven't used before?
Is it burned discs that it is choking on or are you haivng problems with certain commencially produced originals?
IF the latter it could be something as simple as a stray cat hair
inside the drive caugit on top of the read head.
Or it could be that the drive is actually dying.
cleaning the drive can't hurt
but worst case... replacing it with another DVD+/-RW drive shouldn't cost more than ~$80 (Probably less).